On demand based frequency allocation to mitigate interference in femto-macro LTE cellular network

Rezvy, Shahadate ORCID: https://orcid.org/0000-0002-2684-7117, Rahman, Shahedur ORCID: https://orcid.org/0000-0002-6568-6264, Lasebae, Aboubaker ORCID: https://orcid.org/0000-0003-2312-9694 and Loo, Jonathan (2013) On demand based frequency allocation to mitigate interference in femto-macro LTE cellular network. 2013 Second International Conference on Future Generation Communication Technology (FGCT). In: Second International Conference on Future Generation Communication Technologies (FGCT- 2013), 12-14 Nov 2013, London, UK. ISBN 9781479929740. [Conference or Workshop Item]

Abstract

Long Term Evolution (LTE) has introduced Femtocells technology in cellular mobile communication system
in order to enhance indoor coverage. Femtocell is low-power,
very small and cost effective cellular base station used in indoor environment. However, the impact of Femtocells on the
performance of the conventional Macrocell system leads
interference problem between Femtocells and pre-existing
Macrocells as they share the same licensed frequency spectrum. In this paper, an efficient method is proposed to mitigate interference and improve system capacity in the existing Femto-Macro two tier networks. In this proposed scheme, a novel frequency planning is used for two tiers cellular networks using frequency reuse technique where Macro base stations allocate frequency sub-bands for Femtocells users on demand basis through Femtocells base stations. This novel frequency reuse technique aims to mitigate interference by improving system throughput

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